Definition of white-rumped sandpiper in US English:

white-rumped sandpiper

noun

  • A small migratory sandpiper having brown and white plumage with white upper tail coverts, Calidris fuscicollis, which breeds in arctic regions of Canada and winters in South America.

Origin

Mid 19th century; earliest use found in Elliott Coues (1842–1889), naturalist and historian.